#! /usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright (c) Huoty, All rights reserved
# Author: Huoty <sudohuoty@gmail.com>
# CreateTime: 2019-03-31 23:03:48

import re

pattern = re.compile(r"hello")
match = pattern.match("hello world")
if match:
    print(match.group())

